[ Inversion + Passive Voice ]
so popular…………..that it now carries nealy two million passengers each day.
A. has the system become
B. the system has become
C. have the system become
D. the system has became

Random Topics:
So or SuchPrepositionsModals VerbsVerb Moods and Vague PronounsGrammar, adverbs of frequency placementVocabularyGrammar Like & Linking VerbSpeech TensesTime and CalendarIntermediateOther quiz:
Conjunctions › ViewLet’s review our answer _____ we finish the exam.
A. after
B. before
C. if
D. until
Grammar › View
The “Mona Liza” was______by Leonardo da Vinci.
A. painted
B. designed
C. sculpted
